m2eclipse错误

Question

我正在使用Eclipse开发一个web应用程序，并使用maven原型生成项目。

当我启用maven依赖项管理时，Eclipse在pom文件中标记了一些错误，这个错误是：

 Multiple annotations found at this line:
- Execution default-testResources of goal org.apache.maven.plugins:maven-resources-          plugin:2.4.3:testResources failed: 
 Plugin org.apache.maven.plugins:maven-resources-plugin:2.4.3 or one of its dependencies could not be resolved: Failed to collect 
 dependencies for org.apache.maven.plugins:maven-resources-plugin:jar:2.4.3 () (org.apache.maven.plugins:maven-resources-
 plugin:2.4.3:testResources:default-testResources:process-test-resources)
- Plugin execution not covered by lifecycle configuration: org.apache.maven.plugins:maven-compiler-plugin:2.3.2:compile 
 (execution: default-compile, phase: compile)
- CoreException: Could not get the value for parameter compilerId for plugin execution default-compile: 
 PluginResolutionException: Plugin org.apache.maven.plugins:maven-compiler-plugin:2.3.2 or one of its dependencies could not be 
 resolved: Failed to collect dependencies for org.apache.maven.plugins:maven-compiler-plugin:jar:2.3.2 (): 
 ArtifactDescriptorException: Failed to read artifact descriptor for org.apache.maven:maven-plugin-api:jar:2.0.6: 
 ArtifactResolutionException: Failure to transfer org.apache.maven:maven-plugin-api:pom:2.0.6 from http://repo1.maven.org/
 maven2 was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or 
 updates are forced. Original error: Could not transfer artifact org.apache.maven:maven-plugin-api:pom:2.0.6 from/to central (http://
 repo1.maven.org/maven2): null to http://repo1.maven.org/maven2/org/apache/maven/maven-plugin-api/2.0.6/maven-plugin-
 api-2.0.6.pom
- CoreException: Could not get the value for parameter compilerId for plugin execution default-testCompile: 
 PluginResolutionException: Plugin org.apache.maven.plugins:maven-compiler-plugin:2.3.2 or one of its dependencies could not be 
 resolved: Failed to collect dependencies for org.apache.maven.plugins:maven-compiler-plugin:jar:2.3.2 (): 
 ArtifactDescriptorException: Failed to read artifact descriptor for org.apache.maven:maven-plugin-api:jar:2.0.6: 
 ArtifactResolutionException: Failure to transfer org.apache.maven:maven-plugin-api:pom:2.0.6 from http://repo1.maven.org/
 maven2 was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or 
 updates are forced. Original error: Could not transfer artifact org.apache.maven:maven-plugin-api:pom:2.0.6 from/to central (http://
 repo1.maven.org/maven2): null to http://repo1.maven.org/maven2/org/apache/maven/maven-plugin-api/2.0.6/maven-plugin-
 api-2.0.6.pom
- Execution default-resources of goal org.apache.maven.plugins:maven-resources-plugin:2.4.3:resources failed: Plugin 
 org.apache.maven.plugins:maven-resources-plugin:2.4.3 or one of its dependencies could not be resolved: Failed to collect 
 dependencies for org.apache.maven.plugins:maven-resources-plugin:jar:2.4.3 () (org.apache.maven.plugins:maven-resources-
 plugin:2.4.3:resources:default-resources:process-resources)
- Plugin execution not covered by lifecycle configuration: org.apache.maven.plugins:maven-compiler-plugin:
 2.3.2:testCompile (execution: default-testCompile, phase: test-compile)

我的pom文件如下：

<project xmlns="http://maven.apache.org/POM/4.0.0"                 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
   <modelVersion>4.0.0</modelVersion>
   <groupId>com.lala.sarasa</groupId>
   <artifactId>msrdecision</artifactId>
  <packaging>war</packaging>
  <version>1.0-SNAPSHOT</version>
  <name>msrdecision Maven Webapp</name>
  <url>http://maven.apache.org</url>
 <dependencies>
   <dependency>
     <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope>
    </dependency>
  </dependencies>
  <build>
    <finalName>hello</finalName>
   </build>
 </project>

有什么想法吗？

Answer 1

在这种特殊的情况下，解决方案是eclipse (Window -> Preferences ->网络连接)的正确代理配置，该公司拥有严格的安全系统。我将离开这个问题，因为有一些答案可以帮助社区。非常感谢你上面的回答。

Answer 2

我在Eclipse 3.7.2 (Indigo)和maven 3.0.4上也遇到了同样的问题。

在我的例子中，问题是由于{user.home}\.m2\repository\org\apache\maven\plugins\maven-resources-plugin\2.4.3文件夹中缺少maven-resources-plugin-2.4.3.jar而导致的。(不知道为什么maven没有更新它)

解决方案：

1.)向pom.xml添加依赖项

<dependency>
    <groupId>org.apache.maven.plugins</groupId>
    <artifactId>maven-resources-plugin</artifactId>
    <version>2.4.3</version>
</dependency>

2.)从Eclipse或命令行运行mvn install

3.)在eclipse中刷新项目(F5)

4.)在项目上运行Maven > Update Project Configuration... (右键单击)

JAR文件下载到本地存储库，WS中没有错误。

Answer 3

我在Eclipse 3.7.2 (Indigo)和maven 3.0.4上也遇到了同样的问题。

Eclipse没有获取我的maven设置，所以我这样做是为了解决这个问题：

1. Window -首选项-

- Installations

- Add  (Maven 3.0.4 instead of using Embedded)
- Click Apply & OK

​

1. Maven >更新项目配置...在项目上(从命令click)
2. Shutdown Eclipse
3. Run line.
4. Open mvn install

中右键打开Eclipse

这些步骤对我有效，但问题并不一致。我只在一台电脑上遇到过问题。